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» On performance of topical opinion retrieval
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LWA
2008
13 years 9 months ago
On the Topical Structure of the Relevance Feedback Set
We investigate the topical structure of the set of documents used to expand a query in pseudorelevance feedback (PRF). We propose a coherence score to measure the relative topical...
Jiyin He, Martha Larson, Maarten de Rijke
TREC
2008
13 years 9 months ago
University of Lugano at TREC 2008 Blog Track
We report on the University of Lugano's participation in the Blog track of TREC 2008. In particular we describe our system for performing opinion retrieval and blog distillat...
Shima Gerani, Mostafa Keikha, Mark James Carman, R...
IV
2006
IEEE
190views Visualization» more  IV 2006»
14 years 1 months ago
Analyzing Actors and Their Discussion Topics by Semantic Social Network Analysis
iQuest is a novel software system to improve understanding of organizational phenomena with greater precision, clarity, and granularity than has previously been possible. It permi...
Peter A. Gloor, Yan Zhao
GIR
2006
ACM
14 years 1 months ago
Indexing implicit locations for geographical information retrieval
Local search has become a hot topic recently in information retrieval research area. How to retrieve geographical information correctly and efficiently is a key challenge to locat...
Zhisheng Li, Chong Wang 0002, Xing Xie, Xufa Wang,...
SIGIR
2002
ACM
13 years 7 months ago
Cross-lingual relevance models
We propose a formal model of Cross-Language Information Retrieval that does not rely on either query translation or document translation. Our approach leverages recent advances in...
Victor Lavrenko, Martin Choquette, W. Bruce Croft